EAST NORRITON -- It's never been easier to set your own personal "vroom temperature" at the Philadelphia Auto Show.

Do you like it nice and hot? Then you'll definitely want to cozy up to the 2013 Corvette ZR1.

Prefer things a bit on the chillier side?

You may want to head across the showroom floor, where the Aston Martin DB9 will be flaunting its automatic climate control powers.

Forty automakers in all will be unleashing their newest, their shiniest and their high-tech-iest as the 111th Philadelphia Auto Show rolls nearly 800 cars, trucks, SUVs and concept cars into the Pennsylvania Convention Center beginning this weekend.

"Our campaign this year is 'find your vroom' because there's a lot of vroom to find here in all these different vehicles," said Kevin Mazzucola, executive director of show presenters, Automobile Dealers Association of Greater Philadelphia. "You have the vehicles you may never be able to afford, and you have the vintages and exotics and you also have the economic small vehicles. So the breath of what the Philly Auto Show brings is kind of its strength. The business side says 35 percent of all vehicles sold in our market area are influenced by the show. And that's important, because when people come to the show they do one of two things: they either confirm what they were going to buy or they may see something they haven't seen before and it may change their mind. And that's all important, but it's also about fun."

Sitting in his office at ADAGP headquarters in East Norriton, Mazzucola said he often is asked by prospective attendees what the "hottest" vehicles will be.

"Is it small utility vehicles, pick up trucks or sports cars?"

The response is all of the above, he said.

"All of those niches are growing, so you're seeing great product in every area. About 43 new vehicle models will be introduced this year, up 50 percent from 2012. It's not the Wild West out there, but it's fertile ground."

Philadelphia's candy store for car buffs of all kinds shifted back into high gear in 2012 after years of being stuck in neutral due to a stagnant auto industry and sluggish economy.

Around this time last year, the industry was predicting $14 million in sales for the year, which Mazzucola is happy to report turned out to be a low-balling forecast.

"It was actually higher, at $14.3 million," he said. "That's one of the things that's unusual about this year's show, in a good way, is that you see the marketplace expanding as it has. We sold $10.4 million in 2009 and in 2013 they're predicting $15 million. So if you take that four-year span, it's one of the biggest expansions in the marketplace in the history of selling cars."

The market is starting to smell its glory days in sales all over again because those jalopies in our driveways and garages aren't getting any younger, he pointed out.

"People's vehicles are wearing out. The average age is 11 years."

The Philly show sends more potential buyers into area showrooms than most of the bigger city shows, Mazzucola noted.

"Philadelphia mirrors the national market because we're the fourth biggest market in the country."

The ever-growing Philly Auto Show is still in transition as it keeps pace with the expanding Convention Center, Mazzucola explained.

"There's such a demand for floor space that there's an emphasis from the manufacturer to leverage the show to help people make decisions that maybe their vehicle is the one to buy down the road at their local dealership."

The show's expanded display floor now embraces the Grand Hall, where Mercedes-Benz and Lexus will again hold forth this year, as Toyota and Jeep whisk visitors from wishful daydreaming into test-driving mode.

"We have the two indoor ride and drives, and now five outside, where people will actually drive the vehicles in the highways and byways of Philadelphia," Mazzucola said. "The Toyota will be the first time anybody in the country will be in the new 2013 RAV4, which is a very important model for Detroit."

Camp Jeep will offer auto show attendees the opportunity to experience the rough-and-ready off-road capabilities of Jeep vehicles without going to all the trouble of exiting the Convention Center.

"You can drive a Jeep wrangler over logs, a dirt hill, a big hill, to see what a Jeep can do and how cool a Jeep is," Mazzucola said. "And this is all inside the Auto Show. That's a first for us to be able to bring something like that to the table."

In between the zoomy supercars and the granola-crunching green machines are the bread and butter of the industry: the pickup trucks.

"The pickup trucks get taken for granted but they're important," Mazzucola said. "A Ford F150 is the best selling vehicle in the country and has been for 25 or 30 years. Volume-wise it's bigger than the Accord, the Camry, anything. GM is right at the cusp of bringing stuff out, and they have a brand new Silverado and Sierra this year." From motorheads, casual enthusiasts and window shoppers to those dragged to the show by all of the above, the Auto Show attracts a diverse crowd, Mazzucola said.

"When you look at the demographics of the show it's like a perfect pumpkin pie at Thanksgiving ... there's a slice of this and a slice of that and they're all about equal in terms of age and income. Whatever it is you aspire to, whatever is your passion or what you can buy now, it's all there. That's why we draw such a diverse crowd and we say it's such a part of the fabric of the Greater Philadelphia area."